That cannot be the first runnings volume with only 4 gallons of liquor in the mash. Figure about a gallon per 10 pounds of grain absorption, so expect almost 3 gallons of first runnings. Sparge with enough to reach preboil volume, whatever that turns out to be and RDWHAHB.

That cannot be the first runnings volume with only 4 gallons of liquor in the mash. Figure about a gallon per 10 pounds of grain absorption, so expect almost 3 gallons of first runnings. Sparge with enough to reach preboil volume, whatever that turns out to be and RDWHAHB.